Index-card



L. A. GALE.

INDEX CARD.

APPLICATION FILED QCT.|5,1919.

198999 l 99 Patented Sept. 6, 1921.

UNITED STATES PATENT OFFICE.

LABURTON A. GALE, OF BELMONT, MASSACHUSETTS, ASSIGNOR TO LIBRARY BUREAU,

0F CAMBRIDGE, MASSACHUSETTS, A CORFORATION OF NEW JERSEY. i

INDEX-CARD.

Lesiones.

specmcatiqn of Letters Patent. Patented Sept. 6, 1921.

Application filed October 15, 1.919. Serial No. 330,808.

To all whom t may concern Be itknown that I, LAURroN A. GALE, a citizen of the United States, and resident of Belmont, in the .county of Middlesex and State of Massachusetts, have invented new and useful Improvements in Index-Cards, of which the following is a specification.

This invention relates to index cardsy and while it is applicable generally to 1nd ex cards having projecting tabs, it is particularl intended for so-called guide cards or divider cards which are used in index systems to divide the indexed matter into vention has to do mainly with the novel and improved construction of the composite index tab, hereinafter more fully described and particularly pointed out in the claims, which provides a durable, moisture proof, wear resisting and handsome tab structure having a window or transparent sheath in which a removable index slip may be displayed.

Figure 1 is a face vof a card embodying the invention;

Fig. 2 is an enlarged section on line 2-'2 of Fig. 1;

Fig. 3 is an enlarged section on line 3-3 ofAFlg 1;

` Fig. 4 is an enlarged section on line 4-4 of Fig. 1; and v Fi 5 is a face or plan view of the tab mem er.

Fig. 6 is a fragmentary section on the same plane as that shown in Fig. 2, illustratingv a modification.

The body 6 of the card may be of any usual or preferred sheet material such as hflaavy paper, card board, ber board or the li e.

Projecting from one edge of the body 6 is a composite tab consisting, in its preferred liti form herein shown, of a tab member 7 of sheet celluloid or other suitable non-absorbent, moisture proof, wear resisting material of substantially the same thickness as the card body. Thetab member 7 is provided with one or more tongues or projections 7a (three being shown in drawings) by which the tab member is anchored to the card body. Such projection or projections may be of any suitable shape for interlocking with recesses in the card body, and are preferably made with enlarged ends and correspondingly .shaped recesses or sockets v8 cut out from the margin of the card body.

When the card body and tab member are thus assembled they lie in the same plane and present a practically continuous flat surface on both' front and back sides.y

A cover of thin sheet Celluloid 9, or other transparent and preferably moisture proof and wear resisting vsheet material, is then folded over the outer edge of the tab and cemented or otherwise secured on both sides of the card, both to the face of the tab member 7 and its projections or tongues 7, and also to the body of the card, whose margln the cover sheet overlaps.

The middle part of the tab-member is cut -out to provide an aperture 10, over which the cover sheet 9 extends on both the front and back sides, thus forming a sheath or pocket to hold a removable insert slip 11 on which may be inscribed suitable index characters. The slip 11 may be inserted or removed through an opening 12 preferably formed at one 'end of the aperture 10 through the face of cover sheet 9. The slip 11 may be removed by inserting the point of a knife or other suitable instrument under the end of the slip andk lifting the end out through the opening 12.

llf preferred, another opening 12 similar to 12 maybe provided in the other face of the cover sheet 9 directly opposite opening 12, so that the index slip 11 may readily be removed by pushing and deflecting its end outward through one of said openings by means of a pencil point, or other pointed implement, or even by the linger of the user,

'introduced through the opposite opening.

therethrough; and a cover member of transparent sheet Celluloid extending across said aperture on both sides forming .a sheath adapted to receive a removable insert slip, said cover member being provided with an opening for the insert slip adjacent one end of the aperture in the tab member.

2. An index card having a tab extension,

lll@

a section of said tab extension being cut out, transparent material secured to the tab faces over said cut out portion to form a pocket therewith, said material at one side of said pocket being cut to form an entrance slot for the insertion of index tablets into said pocket.

3. An index card having a recess near anV edge thereof, strengthening material secured to the card to close the sides of said recess to form a pocket, said material at one'side of said pocket being transparent and provided with a slot for the insertion of index tablets into said pocket. v

4. An index card comprising a body; a

tab member of sheet Celluloid secured to the edge of the body and projecting therefrom, said tab member having an aperture therethrough; and a cover member of transparent sheet Celluloid extending across said aperture onboth sides formingr a sheath adapted to receive a removable insert slip, said cover member being provided with an opening for the insertl slip on each side of Y' the tab, the two openings beingdirectly opposite each other and adjacent one end of the aperture in the tab member.

Signed by me at Boston, Massachusetts, this 11th day of October, 1919.

LABURTON A. GALE. 

